US20220285835A1 - Communication system - Google Patents

Communication system Download PDF

Info

Publication number
US20220285835A1
US20220285835A1 US17/637,135 US202017637135A US2022285835A1 US 20220285835 A1 US20220285835 A1 US 20220285835A1 US 202017637135 A US202017637135 A US 202017637135A US 2022285835 A1 US2022285835 A1 US 2022285835A1
Authority
US
United States
Prior art keywords
axis
tracker
respect
communication device
range
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
US17/637,135
Other languages
English (en)
Inventor
Hyun Uk Lee
Min Son Son
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Intellian Technologies Inc
Original Assignee
Intellian Technologies Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Intellian Technologies Inc filed Critical Intellian Technologies Inc
Assigned to INTELLIAN TECHNOLOGIES INC. reassignment INTELLIAN TECHNOLOGIES INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LEE, HYUN UK, SON, MIN SON
Publication of US20220285835A1 publication Critical patent/US20220285835A1/en
Pending legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
    • H01Q3/08—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying two co-ordinates of the orientation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
    • H01Q3/08—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying two co-ordinates of the orientation
    • H01Q3/10—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying two co-ordinates of the orientation to produce a conical or spiral scan
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/125—Means for positioning
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/34—Adaptation for use in or on ships, submarines, buoys or torpedoes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave

Definitions

  • the following description relates to a communication system.
  • a communication system for transmitting and receiving radio waves through an antenna is developed.
  • a pedestal for tracking an antenna is disclosed in U.S. Patent Application Publication No. 2014/0299734. While a satellite is tracked on a field of view, an antenna may relatively rapidly rotate in a specific area on the field of view compared to other areas. This phenomenon is also known as a “keyhole effect”. In order to control a rotational velocity of the antenna in the specific area, the communication system requires a relatively huge capacity of power source.
  • An aspect provides a communication system for avoiding a specific area on a field of view having a keyhole effect.
  • a communication system including a communication device including a tracker for rotating with respect to a first axis, a second axis, and a third axis that are orthogonal to each other and performing radio-wave communication with a moving object moving within a field of view, and a controller for controlling the communication device based on a trajectory angle of the moving object, wherein the controller controls the communication device so that the tracker rotates with respect to the first axis and the second axis in a range of a first trajectory angle of the moving object and rotates with respect to the second axis and the third axis in a range of a second trajectory angle of the moving object.
  • the controller may prevent the tracker from rotating with respect to the third axis in the range of the first trajectory angle.
  • the controller may determine a rotation angle of the tracker with respect to the third axis to maintain a status in which the tracker tilts by the trajectory angle of the moving object in the range of the second trajectory angle.
  • the controller may prevent the tracker from rotating with respect to the first axis in the range of the second trajectory angle.
  • the first axis may be an azimuth axis
  • the second axis may be an elevational axis
  • the third axis may be a cross-level axis.
  • the cross-level axis may be an axis for a roll motion on a fixed world having the communication device installed.
  • the fixed world may be a ship.
  • the controller may limit an angular velocity of an azimuth angle for the tracker to below a threshold angular velocity.
  • a communication system may avoid a specific area on a field of view having a keyhole effect.
  • FIG. 1 is a block diagram illustrating a communication system according to an example embodiment.
  • FIG. 2 is a perspective view of a communication device according to an example embodiment.
  • FIGS. 3 and 4 are diagrams illustrating an operation of a communication device in a range of a first trajectory angle according to an example embodiment.
  • FIGS. 5 and 6 are diagrams illustrating an operation of a communication device in a range of a second trajectory angle according to an example embodiment.
  • FIG. 7 is a conceptual diagram to describe a control scheme for a communication device according to an example embodiment.
  • FIGS. 8 and 9 are graphs to describe another control scheme for a communication device according to an example embodiment.
  • constituent element which has the same common function as the constituent element included in any one embodiment, will be described by using the same name in other example embodiments. Unless disclosed to the contrary, the configuration disclosed in any one example embodiment may be applied to other example embodiments, and the specific description of the repeated configuration will be omitted.
  • FIG. 1 is a block diagram for a communication system according to an example embodiment
  • FIG. 2 is a perspective view for the communication device according to an example embodiment.
  • a communication system 1 may be configured to perform radio-wave communication with a moving object ST on a field of view.
  • the communication system 1 may include a communication device 10 and a controller 20 .
  • the communication device 10 may be configured to transmit and receive radio waves to and from the moving object ST on the field of view.
  • the communication device 10 may include a tracker 110 and a pedestal 120 .
  • the tracker 110 may be configured to track the moving object ST on the field of view.
  • the tracker 110 may include a reflector having a reflective surface, the reflector with an approximately parabolic cross-section.
  • the tracker 110 may be configured to rotate with respect to an elevational axis EL, an azimuth axis AZ, and/or a cross-level axis CL.
  • the elevational axis EL, the azimuth axis AZ, and the cross-level axis CL may be orthogonal to each other.
  • the pedestal 120 may be configured to support the tracker 110 .
  • the pedestal 120 may include a shaft 121 , a first gimbal 122 , and a second gimbal 123 .
  • the shaft 121 may be configured to rotate with respect to the azimuth axis AZ.
  • the shaft 121 may have an elongated cylindrical shape.
  • the shaft 121 may be installed on a reference plane of a fixed world FW.
  • the first gimbal 122 may be configured to rotate with respect to the azimuth axis AZ.
  • the first gimbal 122 may be connected to the shaft 121 .
  • the first gimbal 122 may be supported by the shaft 121 .
  • the first 122 may include a pair of first arms extending from sides of the shaft 121 at an upper end of the shaft 121 and then extending along the azimuth axis AZ.
  • the second gimbal 123 may be configured to support the tracker 110 and rotate with respect to the elevational axis EL.
  • the second gimbal 123 may be connected to the first gimbal 122 .
  • the second gimbal 123 may be supported by the first gimbal 122 .
  • the second gimbal 123 may include a body portion connected to the tracker 110 and configured to rotate with respect to the cross-level axis CL and a pair of second arms surrounding the body portion and rotatably connected to the pair of first arms of the first gimbal 122 .
  • the communication device 10 may be installed on the fixed world FW.
  • the fixed world FW may include a surface of the earth, a ship and the like.
  • the communication device 10 is installed in a ship. Since a ship performs 6-degree of freedom motions on water surface, the communication device 10 installed on the ship needs to track the moving object ST on the field of view while further considering motions to or with respect to multi-axial directions.
  • the controller 20 may also be installed on the fixed world FW together with the communication device 10 .
  • the controller 20 may be configured to control tilting and rotating of the communication device 10 with respect to the elevational axis EL, the azimuth axis AZ, and/or the cross-level axis CL.
  • the controller 20 may control the tilting and rotating of the communication device 10 according to a position of the moving object ST on the field of view.
  • the controller 20 may control the tilting and rotating of the communication device 10 considering a trajectory angle of the moving object ST on the field of view.
  • a specific control scheme of the controller 20 for the communication device 10 will be described in detail with reference to FIGS. 3 through 7 .
  • FIGS. 3 and 4 are diagrams illustrating an operation of a communication device in a range of a first trajectory angle according to an example embodiment.
  • the controller 20 may control an operation of the communication device 10 for the tracker 110 to rotate with respect to the azimuth axis AZ and the elevational axis EL, respectively, to track the moving object ST, while the moving object ST is in a range of a first trajectory angle ( ⁇ X° to) ⁇ Y° on a field of view.
  • the controller 20 may control rotation of the shaft 121 , the first gimbal 122 , and/or the second gimbal 123 for the first gimbal 122 to rotate with respect to the azimuth axis AZ for the second gimbal 123 to rotate with respect to the elevational axis EL.
  • the range of the first trajectory angle when the communication device 10 (See FIG. 2 ) is installed on the ground, the range of the first trajectory angle may be ⁇ 10° to ⁇ 54°. In a non-limiting example, when the communication device 10 is installed on a ship, the range may be ⁇ 35° to ⁇ 79°.
  • the controller 20 may prevent the tracker 110 from rotating with respect to the cross-level axis CL.
  • the controller 20 may prevent the body portion of the second gimbal 123 from rotating with respect to the cross-level axis CL.
  • FIGS. 5 and 6 are diagrams illustrating an operation of a communication device in a range of a second trajectory angle according to an example embodiment.
  • the controller 20 may control an operation of the communication device 10 to make the tracker 110 rotate with respect to the elevational axis EL and the cross-level axis CL, respectively, to track the moving object ST, while the moving object ST is in a range of a second trajectory angle ( ⁇ X° to +X°) on a field of view.
  • the controller 20 may control rotation of the second gimbal 123 to make the second gimbal 123 rotate with respect to the elevational axis EL and make the body portion of the second gimbal 123 rotate with respect to the cross-level axis CL.
  • the range of the second trajectory angle when the communication device 10 (See FIG. 2 ) is installed on the ground, the range of the second trajectory angle may be ⁇ 10° to +10°. In a non-limiting example, when the communication device 10 is installed on a ship, the range may be ⁇ 35° to +35°.
  • the controller 20 may tilt the tracker 110 with respect to the cross-level axis CL such that a rotation angle of the tracker 110 for the cross-level axis CL and a trajectory angle of the moving object ST may be substantially equal in the range of the second trajectory angle.
  • the controller 20 may control the communication device 10 to maintain a tilting angle of the tracker 110 and the trajectory angle of the moving object ST to be substantially equal in the range of the second trajectory angle.
  • the controller 20 may prevent the tracker 110 from rotating with respect to the azimuth axis AZ.
  • the controller 20 may prevent the first gimbal 122 from rotating with respect to the azimuth axis AZ.
  • FIG. 7 is a conceptual diagram to describe a control scheme for a communication device according to an example embodiment.
  • FIG. 7 a conceptual diagram is illustrated to help intuitively understand a specific control scheme of the controller 20 for the tracker 110 with respect to the elevational axis EL, the azimuth axis AZ, and/or the cross-level axis CL.
  • the tracker 110 does not rotate and tilt with respect to the cross-level axis CL but follows a first movement path P 1 in which the tracker 110 rotates with respect to the elevational axis EL throughout a range of a first trajectory angle R 1 and a range of a second trajectory angle R 2 .
  • the tracker 110 on the first movement path P 1 is bound to pass through a singular area PA on a field of view where a keyhole effect occurs. Since the tracker 110 requires a rapid rotation with respect to the azimuth axis AZ to smoothly track the moving object ST while the tracker 110 is passing through the singular area PA, a relatively large driving torque may be required for the rotation of the tracker 110 .
  • the tracker 110 follows a second movement path P 2 for avoiding the singular area PA throughout the range of the first trajectory angle R 1 and the range of the second trajectory range R 2 .
  • the tracker 110 may avoid the singular area PA by rotating with respect to the elevational axis EL as in the first movement path P 1 and then tilting by a trajectory angle of the moving object ST with respect to the cross-level axis CL and/or maintaining the status of tilting before entering the range of the second trajectory angle R 2 having the singular area PA.
  • the controller 20 may adjust a rotation angle of the tracker 110 for the cross-level axis CL to move along a path similar to the first movement path P 1 .
  • FIGS. 8 and 9 are graphs to describe another control scheme for a communication device according to an example embodiment.
  • the communication device may be controlled in an alternative way different from the way described above.
  • a controller may limit an angular velocity of an azimuth angle of a tracker to below a threshold angular velocity, and in case that an angular velocity equal to or higher than the threshold angular velocity is required, the controller may control the tracker with a driving based on a three-axis (an azimuth axis, an elevational axis, and a cross-level axis) trajectory to reduce occurrence of load required for driving the tracker.
  • the controller may control the tracker by using a two-axis (the azimuth axis and the elevational axis) trajectory in an environment in which the tracker is driven at the threshold angular velocity or below.
  • FIG. 8 is a graph showing changes in azimuth angles over time when maximum values of an elevation angle of the tracker are 90°, 88°, 85°, and 80°
  • FIG. 9 is a graph showing the angular velocities of the azimuth angles of the tracker when maximum values of the elevation angle of the tracker are 90°, 88°, 85°, and 80°.
  • the threshold angular velocity may be 5 degrees per second (deg/sec). In this case, when the maximum values of the azimuth angle are 90° and 88°, a period in which the angular velocity exceeds the threshold angular velocity may be recognized.
  • the methods according to the above-described examples may be recorded in non-transitory computer-readable media including program instructions to implement various operations of the above-described examples.
  • the media may also include, alone or in combination with the program instructions, data files, data structures, and the like.
  • the program instructions recorded on the media may be those specially designed and constructed for the purposes of example embodiments, or they may be of the kind well-known and available to those having skill in the computer software arts.
  • non-transitory computer-readable media examples include magnetic media such as hard disks, floppy disks, and magnetic tape; optical media such as CD-ROM discs or DVDs; magneto-optical media such as optical discs; and hardware devices that are specially configured to store and perform program instructions, such as read-only memory (ROM), random access memory (RAM), flash memory, and the like.
  • program instructions include both machine code, such as produced by a compiler, and files containing higher-level code that may be executed by the computer using an interpreter.
  • the above-described devices may be configured to act as one or more software modules in order to perform the operations of the above-described example embodiments, or vice versa.
  • the software may include a computer program, a piece of code, an instruction, or some combination thereof, to independently or uniformly instruct or configure the processing device to operate as desired.
  • Software and data may be embodied permanently or temporarily in any type of machine, component, physical or virtual equipment, computer storage medium or device, or in a propagated signal wave capable of providing instructions or data to or being interpreted by the processing device.
  • the software also may be distributed over network-coupled computer systems so that the software is stored and executed in a distributed fashion.
  • the software and data may be stored by one or more non-transitory computer-readable recording mediums.

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
  • Traffic Control Systems (AREA)
US17/637,135 2019-09-18 2020-05-04 Communication system Pending US20220285835A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR10-2019-0114980 2019-09-18
KR1020190114980A KR102195419B1 (ko) 2019-09-18 2019-09-18 통신 시스템
PCT/KR2020/005825 WO2021054560A1 (ko) 2019-09-18 2020-05-04 통신 시스템

Publications (1)

Publication Number Publication Date
US20220285835A1 true US20220285835A1 (en) 2022-09-08

Family

ID=74086921

Family Applications (1)

Application Number Title Priority Date Filing Date
US17/637,135 Pending US20220285835A1 (en) 2019-09-18 2020-05-04 Communication system

Country Status (4)

Country Link
US (1) US20220285835A1 (ko)
EP (1) EP4033607A4 (ko)
KR (1) KR102195419B1 (ko)
WO (1) WO2021054560A1 (ko)

Citations (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5043737A (en) * 1990-06-05 1991-08-27 Hughes Aircraft Company Precision satellite tracking system
US5166689A (en) * 1991-11-25 1992-11-24 United Technologies Corporation Azimuth correction for radar antenna roll and pitch
US6226760B1 (en) * 1997-09-26 2001-05-01 Daimlerchrysler Ag Method and apparatus for detecting faults
US6285338B1 (en) * 2000-01-28 2001-09-04 Motorola, Inc. Method and apparatus for eliminating keyhole problem of an azimuth-elevation gimbal antenna
US6433736B1 (en) * 2000-11-22 2002-08-13 L-3 Communications Corp. Method and apparatus for an improved antenna tracking system mounted on an unstable platform
US20060077097A1 (en) * 2004-06-17 2006-04-13 The Aerospace Corporation Antenna beam steering and tracking techniques
US7095376B1 (en) * 2004-11-30 2006-08-22 L3 Communications Corporation System and method for pointing and control of an antenna
US20070052605A1 (en) * 2004-10-28 2007-03-08 Seaspace Corporation Antenna positioner system with dual operational mode
US7239276B1 (en) * 2005-10-24 2007-07-03 Lockheed Martin Corporation Method and system for fast synthesis of shaped phased-array beams
US20070241244A1 (en) * 2006-04-18 2007-10-18 X-Ether, Inc. Method and apparatus for eliminating keyhole problems in an X-Y gimbal assembly
US20080018534A1 (en) * 2005-03-25 2008-01-24 The Boeing Company Electronic beam steering for keyhole avoidance
US7446721B2 (en) * 2004-03-11 2008-11-04 Intellian Technologies Inc. Satellite tracking antenna system and method therefor
US20090231224A1 (en) * 2008-03-11 2009-09-17 Felstead E Barry Rotating antenna steering mount
US20100117903A1 (en) * 2008-11-12 2010-05-13 Dunmin Zheng Iterative antenna beam forming systems/methods
US20100246886A1 (en) * 2009-03-26 2010-09-30 Kabushiki Kaisha Toshiba Moving object image tracking apparatus and method
US20100265149A1 (en) * 2007-12-07 2010-10-21 Furuno Electric Co., Ltd. Control system and method for reducing directional error of antenna with biaxial gimbal structure
US20110068989A1 (en) * 2009-09-22 2011-03-24 Cory Zephir Bousquet Antenna System with Three Degrees of Freedom
US20110304737A1 (en) * 2010-06-15 2011-12-15 Flir Systems, Inc. Gimbal positioning with target velocity compensation
US20120001816A1 (en) * 2010-06-27 2012-01-05 Sea Tel, Inc. Three-axis pedestal having motion platform and piggy back assemblies
US20140299734A1 (en) * 2011-12-08 2014-10-09 Spacecom Holding Aps Pedestal for tracking antenna
US20150059500A1 (en) * 2013-08-27 2015-03-05 Winegard Company Antenna mount for selectively adjusting the azimuth, elevation, and skew alignments of an antenna
US9093742B2 (en) * 2011-10-17 2015-07-28 McDonald, Dettwiler and Associates Corporation Wide scan steerable antenna with no key-hole
US20160126626A1 (en) * 2013-05-20 2016-05-05 Mitsubishi Electric Corporation Three-axis control antenna device
US20160336652A1 (en) * 2014-01-17 2016-11-17 Mitsubishi Electric Corporation Antenna control device and antenna apparatus
US20170010341A1 (en) * 2013-07-03 2017-01-12 Mitsubishi Electric Corporation Tracking system, tracking method, and non-transitory computer-readable recording medium storing program
US20170031013A1 (en) * 2013-08-28 2017-02-02 Aveillant Limited Radar system and associated apparatus and methods
US20170310001A1 (en) * 2016-04-21 2017-10-26 Korea Aerospace Research Institute Apparatus and method for controlling speed of satellite antenna
US20180048062A1 (en) * 2016-08-10 2018-02-15 Agency For Defense Development Apparatus and method for controlling stabilization of satellite-tracking antenna
US20180375188A1 (en) * 2017-06-27 2018-12-27 Sea Tel, Inc. (Dba Cobham Satcom) Tracking antenna system having modular three-axes pedestal
US20190212742A1 (en) * 2016-09-26 2019-07-11 SZ DJI Technology Co., Ltd. Control method, control device, and carrier system
US20200168989A1 (en) * 2017-02-17 2020-05-28 Mitsubishi Electric Corporation Antenna device, antenna control device, and method for controlling antenna device
US20210057798A1 (en) * 2018-03-08 2021-02-25 Viasat, Inc. Antenna positioner with eccentric tilt position mechanism
US20210066778A1 (en) * 2019-09-02 2021-03-04 Intellian Technologies, Inc. Method and apparatus for controlling antenna
US20210399416A1 (en) * 2019-01-18 2021-12-23 Intellian Technologies Inc. Pedestal including tilted azimuth axis

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100974534B1 (ko) * 2008-01-24 2010-08-10 인하대학교 산학협력단 시선벡터의 연속 회전이 가능한 피치-롤 기반의 안테나추적 짐발 시스템
WO2010075109A1 (en) * 2008-12-15 2010-07-01 Sea Tel, Inc. Pedestal for tracking antenna
JP5823019B2 (ja) * 2012-03-13 2015-11-25 三菱電機株式会社 アンテナ検査システム、アンテナ検査装置、アンテナ検査方法およびプログラム

Patent Citations (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5043737A (en) * 1990-06-05 1991-08-27 Hughes Aircraft Company Precision satellite tracking system
US5166689A (en) * 1991-11-25 1992-11-24 United Technologies Corporation Azimuth correction for radar antenna roll and pitch
US6226760B1 (en) * 1997-09-26 2001-05-01 Daimlerchrysler Ag Method and apparatus for detecting faults
US6285338B1 (en) * 2000-01-28 2001-09-04 Motorola, Inc. Method and apparatus for eliminating keyhole problem of an azimuth-elevation gimbal antenna
US6433736B1 (en) * 2000-11-22 2002-08-13 L-3 Communications Corp. Method and apparatus for an improved antenna tracking system mounted on an unstable platform
US7446721B2 (en) * 2004-03-11 2008-11-04 Intellian Technologies Inc. Satellite tracking antenna system and method therefor
US20060077097A1 (en) * 2004-06-17 2006-04-13 The Aerospace Corporation Antenna beam steering and tracking techniques
US20070052605A1 (en) * 2004-10-28 2007-03-08 Seaspace Corporation Antenna positioner system with dual operational mode
US7095376B1 (en) * 2004-11-30 2006-08-22 L3 Communications Corporation System and method for pointing and control of an antenna
US7333064B1 (en) * 2004-11-30 2008-02-19 L3 Communication Corporation System and method for pointing and control of an antenna
US20080018534A1 (en) * 2005-03-25 2008-01-24 The Boeing Company Electronic beam steering for keyhole avoidance
US7239276B1 (en) * 2005-10-24 2007-07-03 Lockheed Martin Corporation Method and system for fast synthesis of shaped phased-array beams
US20070241244A1 (en) * 2006-04-18 2007-10-18 X-Ether, Inc. Method and apparatus for eliminating keyhole problems in an X-Y gimbal assembly
US20100265149A1 (en) * 2007-12-07 2010-10-21 Furuno Electric Co., Ltd. Control system and method for reducing directional error of antenna with biaxial gimbal structure
US20090231224A1 (en) * 2008-03-11 2009-09-17 Felstead E Barry Rotating antenna steering mount
US20100117903A1 (en) * 2008-11-12 2010-05-13 Dunmin Zheng Iterative antenna beam forming systems/methods
US20100246886A1 (en) * 2009-03-26 2010-09-30 Kabushiki Kaisha Toshiba Moving object image tracking apparatus and method
US20110068989A1 (en) * 2009-09-22 2011-03-24 Cory Zephir Bousquet Antenna System with Three Degrees of Freedom
US20110304737A1 (en) * 2010-06-15 2011-12-15 Flir Systems, Inc. Gimbal positioning with target velocity compensation
US20120001816A1 (en) * 2010-06-27 2012-01-05 Sea Tel, Inc. Three-axis pedestal having motion platform and piggy back assemblies
US9093742B2 (en) * 2011-10-17 2015-07-28 McDonald, Dettwiler and Associates Corporation Wide scan steerable antenna with no key-hole
US20140299734A1 (en) * 2011-12-08 2014-10-09 Spacecom Holding Aps Pedestal for tracking antenna
US20160126626A1 (en) * 2013-05-20 2016-05-05 Mitsubishi Electric Corporation Three-axis control antenna device
US20170010341A1 (en) * 2013-07-03 2017-01-12 Mitsubishi Electric Corporation Tracking system, tracking method, and non-transitory computer-readable recording medium storing program
US20150059500A1 (en) * 2013-08-27 2015-03-05 Winegard Company Antenna mount for selectively adjusting the azimuth, elevation, and skew alignments of an antenna
US20170031013A1 (en) * 2013-08-28 2017-02-02 Aveillant Limited Radar system and associated apparatus and methods
US20160336652A1 (en) * 2014-01-17 2016-11-17 Mitsubishi Electric Corporation Antenna control device and antenna apparatus
US20170310001A1 (en) * 2016-04-21 2017-10-26 Korea Aerospace Research Institute Apparatus and method for controlling speed of satellite antenna
US20180048062A1 (en) * 2016-08-10 2018-02-15 Agency For Defense Development Apparatus and method for controlling stabilization of satellite-tracking antenna
US20190212742A1 (en) * 2016-09-26 2019-07-11 SZ DJI Technology Co., Ltd. Control method, control device, and carrier system
US20200168989A1 (en) * 2017-02-17 2020-05-28 Mitsubishi Electric Corporation Antenna device, antenna control device, and method for controlling antenna device
US20180375188A1 (en) * 2017-06-27 2018-12-27 Sea Tel, Inc. (Dba Cobham Satcom) Tracking antenna system having modular three-axes pedestal
US20210057798A1 (en) * 2018-03-08 2021-02-25 Viasat, Inc. Antenna positioner with eccentric tilt position mechanism
US11522266B2 (en) * 2018-03-08 2022-12-06 Viasat, Inc. Antenna positioner with eccentric tilt position mechanism
US20210399416A1 (en) * 2019-01-18 2021-12-23 Intellian Technologies Inc. Pedestal including tilted azimuth axis
US20210066778A1 (en) * 2019-09-02 2021-03-04 Intellian Technologies, Inc. Method and apparatus for controlling antenna
US11424533B2 (en) * 2019-09-02 2022-08-23 Intellian Technologies, Inc. Method and apparatus for controlling antenna

Also Published As

Publication number Publication date
EP4033607A1 (en) 2022-07-27
KR102195419B1 (ko) 2020-12-28
WO2021054560A1 (ko) 2021-03-25
EP4033607A4 (en) 2023-10-11

Similar Documents

Publication Publication Date Title
US7969375B2 (en) Spherical motor positioning
US20070241244A1 (en) Method and apparatus for eliminating keyhole problems in an X-Y gimbal assembly
US20150116155A1 (en) Methods and systems for self-aligning high data rate communication networks
JP5016464B2 (ja) ２軸ジンバル構造を有するアンテナの指向誤差を低減する制御方法およびその方法を備えた制御装置
US8174581B2 (en) Moving object image tracking apparatus and method
US10020575B2 (en) Apparatus and method for controlling stabilization of satellite-tracking antenna
JP5320340B2 (ja) フェーズドアレイレーダ装置およびこれを備えた車両
US20220285835A1 (en) Communication system
ES2941736T3 (es) Antena de seguimiento de cola
JP5773616B2 (ja) コントロール・モーメント・ジャイロスコープを用いて敏捷性のあるビークルの向きを変更する際に運動量の境界を課す方法およびシステム
US7370833B2 (en) Method and system for determining a singularity free momentum path
US20120169539A1 (en) Robust beamforming for antenna arrays through use of motion/displacement sensing
US20200243965A1 (en) Band Changer and Communication System Including the Band Changer
CN115639849B (zh) 一种机电复合的目标过顶跟踪方法及装置
EP3913737A1 (en) Pedestal including tilted azimuth axis
US11424533B2 (en) Method and apparatus for controlling antenna
EP3916905A1 (en) Band changer and communication system including same
US6853349B1 (en) Method and device for prevention of gimbal-locking
JP4423371B2 (ja) 空間安定装置
JP2973919B2 (ja) 衛星用アンテナの捕捉制御装置及びその制御方法
JP4087355B2 (ja) 追尾機器
JPS63174406A (ja) 追尾用アンテナ装置
KR102166438B1 (ko) 컬링 로봇 및 이의 제어 방법
JPH04336821A (ja) 移動体の衛星受信追尾装置
KR100392250B1 (ko) 저가형 다중위성 이동수신 추적안테나의 위성추적 제어장치 및 제어 방법

Legal Events

Date Code Title Description
AS Assignment

Owner name: INTELLIAN TECHNOLOGIES INC., KOREA, REPUBLIC OF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LEE, HYUN UK;SON, MIN SON;REEL/FRAME:059184/0801

Effective date: 20220215

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED